sum of all digits in a given number using Shell Script

By: Dorris Emailed: 1673 times Printed: 2156 times    

Latest comments
By: rohit kumar - how this program is work
By: Kirti - Hi..thx for the hadoop in
By: Spijker - I have altered the code a
By: ali mohammed - why we use the java in ne
By: ali mohammed - why we use the java in ne
By: mizhelle - when I exported the data
By: raul - no output as well, i'm ge
By: Rajesh - thanx very much...
By: Suindu De - Suppose we are executing

This shell script prints the given number's sum of all digits, For eg. If no is 123 it's sum of all digit will be 1+2+3 = 6.
#!/bin/bash
#
# Linux Shell Scripting Tutorial 1.05r3, Summer-2002
#
# Written by Vivek G. Gite <vivek@nixcraft.com>
#
# Latest version can be found at http://www.nixcraft.com/
#
# Algo:
#       1) Input number n
#       2) Set sum=0, sd=0
#   	3) Find single digit in sd as n % 10 it will give (left most digit)
#       4) Construct sum no as sum=sum+sd
#       5) Decrment n by 1
#       6) Is n is greater than zero, if yes goto step 3, otherwise next step
#       7) Print sum
#
if [ $# -ne 1 ]
then
    echo "Usage: $0   number"
    echo "       I will find sum of all digit for given number"
    echo "       For eg. $0 123, I will print 6 as sum of all digit (1+2+3)"
    exit 1
fi

n=$1
sum=0
sd=0
while [ $n -gt 0 ]
do
    sd=`expr $n % 10`
    sum=`expr $sum + $sd`
    n=`expr $n / 10`
done
    echo  "Sum of digit for numner is $sum"

Linux Home | All Linux Tutorials | Latest Linux Tutorials

Sponsored Links

If this tutorial doesn't answer your question, or you have a specific question, just ask an expert here. Post your question to get a direct answer.



Bookmark and Share

Comments(3)


1. View Comment

Thanx..very useful in this pgm..

View Tutorial          By: priya at 2013-02-06 10:54:44
2. View Comment

Thanks Friend it was very helpfull.

View Tutorial          By: UMAR FAROOQ at 2015-03-01 07:46:43
3. View Comment

Thanks :)

View Tutorial          By: Anuj Bhatnagar at 2015-05-06 14:02:19

Your name (required):


Your email(required, will not be shown to the public):


Your sites URL (optional):


Your comments:



More Tutorials by Dorris
sum of all digits in a given number using Shell Script
sh -x and sh -v in Linux
case..esac..in Linux Shell Script
while loop in Linux Shell Script
Nested for loop in Linux Shell Script
for loop in Linux Shell Script
Multilevel if-then-else in Linux Shell Script
Nested if-else-fi in Linux Shell Script
if...else...fi in Linux Shell Script
test command or [ expr ] in Linux Shell Script
if condition in Linux Shell Script
Download Linux. Which linux and where?
Formula in Hibernate
Primary keys assigned by triggers in Hibernate
Assigned identifiers in Hibernate

More Tutorials in Linux
smskannel SMS gateway run in background
Running jar files in background in ssh window
Could not open '': No such file or directory at lib/ExtUtils/MM_Unix.pm line 2697
Can't locate ExtUtils/MakeMaker.pm in @INC ...
bash: make: command not found
apxs: command not found
bash: svn: command not found
make: Nothing to be done for `all'.
How to burn your CD / DVD ISO image using Media Creator (Adaptec/Roxio) on Windows
How to burn your CD / DVD ISO image using Nero Burning ROM (Ahead Software) on Windows
How to burn your CD / DVD ISO image using Nero Express (Ahead Software) on Windows
How to burn your CD / DVD ISO image using NISO Recorder V2 Power Toy on Windows
How to burn your CD / DVD ISO image using k3b on CentOS
Compiling and Installing software from source in Linux
Installing RPM's using the Redhat Package Manager in Linux

More Latest News
Most Viewed Articles (in Linux )
Nested for loop in Linux Shell Script
Sort numbers using arrays in Shell Script
Print contents of a file using Shell Script
Command line arguments to calculate average in Shell Script
Decimal to hexadecimal converter in Shell Script
Mounting cdrom in cent os 5 linux
Variables in Linux Shell Script
How to define User defined variables in Linux Shell Script
How to print or access value of user defined variables in Linux Shell Script
Arithmetic in Linux Shell Script
Quotes in Linux Shell Script
Exit Status in Linux Shell Script
Input - Output redirection in Linux Shell Script
if condition in Linux Shell Script
test command or [ expr ] in Linux Shell Script
Most Emailed Articles (in Linux)
smskannel SMS gateway run in background
test command or [ expr ] in Linux Shell Script
for loop in Linux Shell Script
How to define User defined variables in Linux Shell Script
Nested for loop in Linux Shell Script
Check for leap year in Shell Script
Check if file exists in Shell Script
Formating text in Shell Script
How to burn your CD / DVD ISO image using Media Creator (Adaptec/Roxio) on Windows
How to burn your CD / DVD ISO image using Nero Express (Ahead Software) on Windows
Compiling and Installing software from source in Linux
Could not open '': No such file or directory at lib/ExtUtils/MM_Unix.pm line 2697
How to use Linux?
What is a Shell Script in linux?
How to write your first Shell Script in linux?